Heeling-machine.



H. W. KENWAY.

HEELING MACHINE.

APPLICATION FILED JULYHS, 1912. RENEWED SEPT. 14. 1916.

Patented Dec. 5, 1916.

3 SHEETS SHEET I.

VWTA/ESSES.

H. W. KENWAY.

HEELING MACHINE. APPLICATION FILED JULY16,1912- RENEWED SEPT. 14, 1916mmfiw Patented Dec. 1916.

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H. W. KENWAY.

HEELING MACHINE.

APPLICATION FILED JULY\6, 1912. RENEWED SEPT. 14, \916- Patented Dec. 5,1916.

3 SHEETSSHEET 3- r wlIIllIII/Il 4 earns rerun r l on.

-HElR-BERT W. KENWAY, OF NEWTON, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOEMACHINERY COMPANY, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEELING-MACHINE.

Application filed July 16, 1912, Serial No. 709,695.

To all whom it may concern:

Be it known that I, HERBERT W. Tinn- WAY, a citizen of the UnitedStates, residing at Newton, in the county of Middlesex and State ofMassachusetts, have invented certain Improvements in Heeling-Machines,of

liminarily to the application of an additional pressure by poweroperated means.

In heeling shoes upon wooden lasts it is important that the pressure ofengagement in the measuring operation should be invariably withinpredetermined limits for if this pressure is too light the heel and theshoe will not be held securely in such intrmate contact as is necessaryto insure the production of a perfect joint between heel and heel seatby the attaching nalls, and on the other hand, if this pressure 1s toogreat the last may be broken down upon the application of the additionalpressure which precedes the nail driving operation. When the measuringoperation depends upon the varying inclination and physical strength ofthe operator it is apparent that uniform results are out of thequestion.

An important feature of the present 111- vention, accordingly, consistsin a novel form of measuring mechanism arranged to be actuatedmechanically so that uniform results are insured regardless of theoperator.

There are in common use at present heeling machines of two distincttypes. In one of these, of which the machine shown in United StatesLetters Patent No. 1,157,688, granted October 26, 1915, on anapplication of Lester L. Glidden, is a good example, the measuringoperation and the application of the additional pressure are effected byrela tively moving first one and then. the other of two cooperating workengaging members. In machines of the other type, of which that shown inUnited States Letters Patent No. 446,885, granted Feb. 24, 1891, to J.H. Pope is a good example, the measuring operation and the applicationof ad- Specification of Letters Yatent.

Patented Dec. 5, 191 6.

Renewed September 14, 1916. Serial No. 120,193.

ditional pressure are efi'ected by moving one work engaging member bytwo successive steps toward a normally stationary cooperating workengaging member. The invention is herein shown as embodied in a machineof the latter type, although certain of its features may be employedwith good advantage in other machines.

An important feature of the invention consists in measuring mechanismfor a heeling machine so constructed that it may be controlled by themotions of the operator which are necessary in order to arrange the workand machine parts in operative relation. For example, it is customary tojack a shoe and then to move the jack with the shoe into alinement witha die plate, or to move the die plate into alinement with the jackedshoe, and in the illustrated embodiment of the present invention it isproposed to utilize this relative movement of the jack and die plate tocontrol the operation of the measuring mechanism. This arrangement isadvantageous in that it is well suited to the convenience of theoperator anddoes not slow down the cycle of the operations of themachine.

An important feature of the invention consists broadly in combiningmechanically actuated measuring mechanism with cooperating work engagingmembers in such a manner that the two members are caused to approacheach other and effect the measuring operation upon being moved intoalinement with each other.

The measuring mechanism herein disclosed may be embodied to goodadvantage ilrthe well known lightning nailing machine, shown in saidPatent No. 44:6,885, in which the measuring operation has heretoforebeen eflected through the medium of a treadle which the operatordepresses with his foot twice during the operation of attaching a heeland spanking a top lift. In that machine the die plate is fixed and thejack is arranged to slide horizontally under the die plate after a shoehas been placed upon the jack while the latter is in an advancedposition.

In the embodiment of the invention here- 7 in disclosed the finalportion of the inward movement of the jack is utilized to initiate theoperation of the measuring mechanism. The work, therefore, is engagedbetween the jack and the die plate by a relative movement of these twomembers toward each other, which movement is brought about by moving thejack into heel attaching position as has always to be done in operatinga machine of this character.

In the embodiment of the invention herein shown the jack is elevatedtoward the die plate in the measuring and pressin operations, but itwould not be without t 1e scope of the invention to move the die platetoward the jack and in adapting the present invention to certain othertypes of heeling machines this would be the arrangement.

In the machine herein disclosed the measuring operation is normallyinitiated by moving the jack into attaching position but in order thatthe jack may be so positioned without necessarily causing the measuringoperation to take place, the present invention contemplates theprovision of a controlling device so placed that the operator may moveit into effective position or not as desired when pushing the jack intoposition. Provision is also made for initiating the measuring operationindependently of the movement of the jack in order that the jack neednot be moved between the attaching and spanking operations unless theoperator so prefers. A combination comprising means for effecting theseresults constitutes another important feature of the invention.

As herein shown a tripping device for initiating the action of themeasuring mechanism is located upon the jack and this arrangementpresents the important advantage that it insures that the jack shall beproperly positioned before the measuring operation can be begun.

Another feature of the invention consists in means under the control ofthe operator for temporarily separating the work engaging members afterthe measuring operation has been effected. Occasion for this would arisein case it is desired to correct or change the position of the parts ofthe work before they are permanently united by the attaching nails orotherwise operated upon.

In the embodiment of the invention herein shown the jack may be loweredaway from the die plate by a treadle connected at the proper point withthe measuring mechanism.

hen the treadle is depressed it acts through the measuring mechanism inopposition to the actuating spring and the arrangement is such that uponreleasing the treadle the spring becomes effective to cause remeasuringof the work.

In the normal operation of the machine herein disclosed the actuator forthe measuring mechanism is energized by power as the last step in eachcycle of the machine but, in order that the actuator may be energized bythe operator preparatory to operating upon the first shoe, or in case itis desired to remove a measured shoe from the machine without completingthe attaching operation, the invention contemplates, as anotherimportant feature, the provision of manually operated auxiliary meansfor energizing the actuator for the measuring mechanism. In the machine,herein shown the treadle by which temporary separation of theworkengaging members is effected is so arranged as to accomplish thisadditional function when depressed to the limit and, while the provisionof a single device, such as the treadle for effecting both thesepurposes, presents a preferred mechanical construction, it should beunderstood that the two operations are distinct and need not necessarilybe effected by the same means.

These and other features of the invention will be best understood andappreciated from the following description of a preferred embodimentthereof selected for purposes of illustration and shown in theaccompanying drawings in which,-

Figure 1 is a view of the machine in front elevation showing the partsin their initial position; Fig. 2 is a similar View showing the machineat the conclusion of the measuring operation; Fig. 3 is a fragmentaryview in perspective of the measuring mechanism and associated parts;Fig. 4. is a plan view, partly in section, showing a portion of the jackand the tripping device for the measuring mechanism; Fig. 5 is asectional view in perspective of part of the actuator for the measuringmechanism, and Fig. 6 is a view in perspective of the jack carrying thetripping device.

The machine frame is provided with journals for a horizontal drivingshaft 2 to which is secured a fly wheel 4 and also a driving pulley notshown. Between the driving pulley and the shaft 2 is interposed a clutchwhich is under control of a starting lever 6 pivotally mounted on theframe within convenient reach of the operator and normally held inelevated position by the tension spring 7. These parts of the machineare substantially similar to the corresponding parts of the machinefully described in Patent No. 446,885 above referred to.

The machine frame has a pair of bosses 9 in which are formed verticalbearings for side rods 8 connected at their upper ends by a cross head10 and at their lower end by a cross head 12. The rods 8 are recirocated vertically from the main sha t 2 through the medium of a crankand link 14, the latter being connected at its lower end to the crosshead 12. Rigidly secured to the frame of the machine above the bosses 9is a stationary plate 16 which is provided at its center with the usualdriving passages of the die plate of a heeling machine. The upper crosshead 10 carries a removable driver block 18 in which is set a gang ofdrivers arranged in alinement with the passages in the die plate 16.Upon the underneath side of the die plate are provided holders 20 for aheel blank and the usual top lift holder, not shown, may be arranged tobe moved into the position of the heel blank holder in any desiredmanner.

The machine frame is provided with a stationary portion 26 above whichare arranged vertical guideways for the jack carriage 28 and the jackcarriage support 30. The jack carriage 28 is provided with horizontalways for the jack 32 and with a thread for a vertical measuring screw 34which rests at its lower end upon the jack carriage support 30. In theportion 26 of the" frame and in the jack carriage support 30 are mounteda pair of cooperating pres-' sure cams 36, 38 and these cams are connected by rock arms 37 and links 39, see Fig. 3, to the fixed collars 40 and42 upon the side rods and are oscillated during the downward movement ofthe side rods. The cams 36 and 38 are so shaped that the jack carriagesupport 30 is elevated to apply a positive pressure to the heel justbefore the drivers begin to act upon the nails supplied to the passagesof the die plate.

The measuring screw 34 is provided at its lower end with an elongatedpinion 44 whichmeshes with a rack 46 mounted for transversereciprocation in bearings 48 se cured to the machine frame.

The rack 46 is slot-ted at its right end to receive a safety locking bar47 which is pivotally connected to the starting handle 6 and guided atits lower end in one of the bearings of the rack. In the initialposition of the machine the lower end of the rod 47 engages theunslotted portion of the rack so that depression of the starting handleis prevented, and it is only after the rack has been moved toward theleft in the measuring operation that the starting handle is released.

In accordance with the present invention the measuring operation iseffected by moving the rack 46 automatically prelil'ninarily to settingthe machine in operation and one form of actuator for effecting thisautomatic movement of the jack will now be described. Upon the left siderod 8 is slidingly mounted a loose sleeve 50 carrying a transverselyprojecting stud 51 by which it is connected to a heavy tension springwhich tends to move the sleeve 50 downwardly upon the side rod. To thelower end of the sleeve 50 is pivotally connected the link 54 which inturn is connected at its lower end to one arm of a bell crank lever 56pivotally mounted upon the stationary part 26 of the frame. The otherarm of the lever 56 is connected to the rack 46 through a short link 58.It will be apparent that when the spring 52 is permitted to rod 8 isprovided with a hardened piece 60 in which is formed a notch as shown inFig. 5. Mounted for horizontal movement in a boss formed on the rearside of the sleeve 50 is a locking plunger 62 normally urged toward theside rod by a compression spring 64 and provided with a transverse stud66 by which it may be retracted to release the sleeve 50. It will beseen that when the side rod 8 moves upwardly the shoulder of the notchin the piece 60 will engage the forward end of the plunger 62 andthrough it the sleeve 50 will be elevated and the spring 52 placed undertension.

The upward movement of the side rods 8 is very rapid and in order torelieve the shock on the measuring mechanism a yielding connection isprovided between the link 54 and the bell crank lever 56. For thispurpose the lower end of the link 54 is slotted and provided with aspindle 70 which is surrounded by a compression spring bearing againstthe under side of a collar, not shown, to which one arm of the lever ispivoted. It will be seen that when the sleeve 50 is rapidly lifted bythe side rod 8 the spring about the spindle 70 will be somewhatcompressed momentarily and the bell crank lever 54 will be swungyieldingly in such a direction as to retract or move the rack 46 towardthe right.

The plunger 62 may be retracted to release the sleeve 50 and permit theactuation of the measuring mechanism in any convenient manner but asherein shown this function is effected normally by moving the jack 32from its forward position in which the shoe is jacked into its rear orattaching position. To this end a tripping pin 67 is slidingly arrangedwithin the sleeve 50 to act upon the stud 66 of the spring lockingplunger 62 as shown in Fig. 4 and a tripping lever is mounted on theleft side of the jack in such a manner as to engage the projecting endof the tripping pin 67 when the jack is pushed into its rear position.The tripping lever 80 is pivotally mounted on the jack and has arearwardly extending arm 81 carrying a set screw by which its rearwardposition may be determined and a forwardly extending arm 82 carrying aset screw 83. The tripping lever is normally held in its rearmostposition, that is, with the rear set screw bearing against the jack postas shown in Fig. 4,

by a weak compression spring 84. Normally the inner end of the set screw83 is separated from the jack so that the lever 80 may move idly whenthe jack is pushed toward the rear, the compression of the spring 84being insuflicient to overcome the compression of the heavier spring 64which holds the locking plunger 62 in engagement with the notch in theside rod 8. A trip controlling device in the form of a slide 85 isarranged to be moved between the end of the set screw 83 and the jack inthe normal operation of the machine when the operator so desires. Theslide 85 fits in undercut ways formed in a boss on the side of the frameand has a knob or button located at that point on the jack which isordinarily engaged by the operator in manipulating the same. The slide85 is normally held in its forward or inoperative position by a tensionspring 86 and it will be seen that in pushing the jack into attachingposition the operators hand will naturally engage the slide 85 and moveit rearwardly into the dotted line position shown in Fig. 4 where itrigidly backs up the tripping lever 80 and renders the lever effectivefor releasing the sleeve 50.

In order to provide for temporarily lowering the jack after themeasuring operation has taken place, in case it is desired to straightena heel blank or top lift, auxiliary manually operated means are providedfor retracting the rack 46. As herein shown these auxiliary meanscomprise a forked arm 90 on the bell crank lever 56 to which isconnected a slotted link 91 pivoted at its lower end to a foot .treadle92. A tension spring 93 normally holds the treadle 92 in its elevatedposition in which position the slot in the link 91 is disposed with itslower end near the pin 89 by which the link is connected to the arm 90of the lever 56. The normal oscillation of the lever 56 therefore has noeffect upon the treadle lever 92 as the pin 89 merely traverses the slotidly.

en the measuring operation has been effected, however, the connectingpin 89 oocupies a position adjacent to the upper end of the slot so thatif the treadle lever 92 is depressed the link 91 will swing the lever 56toward the right retracting the rack 46 and also elevating the sleeve 50against the tension of the spring 52. It will be seen that by this meansthe operator may hold the jack in a slightly lowered position whilecorrecting the position of the heel blank or top lift and then byreleasing the treadle allow the spring 52 to act as before and againelevate the jack and remeasure the work. By depressing the treadle lever92 to the limit the sleeve 50 will be elevated suificiently to carry thelocking plunger 62 into register with a notch in the side rod so that inthis way the treadle may be utilized to energize the actuator for themeasuring mechanism independently of the manner in which this functionis accomplished automatically in the normal operation of the machine.

The operation of the machine may be outlined briefly as follows: In itsinitial position the side rods and cross head 10 are elevated and thesleeve 50 occupies its upper position with its spring 52 under tensionas'shown in Fig. 1. The operator pulls the jack forwardly and jacks ashoe while his assistant places a heel blank in position under the dieplate 16 and inserts the attaching nails in the driver passages. Theoperator then slides the jack rearwardly to bring the heel seat of theshoe into alinement with the heel blank and in this operation thetripping lever 80 upon the side of the jack strikes the tripping pin 67and releases the sleeve 50 which thereupon is pulled downwardly by thespring 52. Downward movement of the sleeve 50 is transmitted to the rack46 as a horizontal movement toward the left and the measuring screw 34is rotated, lifting the jack until the heel seat of the shoe brings upagainst the heel blank. The extent of downward movement of the sleeve 50and horizontal movement of the rack 46 depends solely upon the thicknessof the work engaged between the jack and the die plate so that a uniformmeasuring pressure is exerted regardless of the thickness of the work.The operator then depresses the starting handle 6 whereupon the siderods are moved downwardly, first causing the pressure cams 36, 38 toelevate the jack carriage and jack by a predetermined amount placing thework un der a positive pressure and then causing the drivers to drivethe attaching nails from the passages in the die plate through the heelblank and into the heel seat of the shoe upon the jack. In the downwardmovement of the side rods the notched piece 60 is carried somewhat belowthe locking plunger 62 in the sleeve 50 so that in the upward movementof the side rods, which occurs without interruption, the sleeve 50 ispicked up, the spring 52 placed under tension and the rack 46 movedreversely lowm'iug the jack carriage and jack into initial position.During this same movement the pressure cams 36, 38 are returned to theirinitial position and this causes a slight further descent of the jack. Atop lift is then placed in the position formerly occupied by the heelblank under the die plate and the operation is repeated to spank the toplift on the projecting ends of the attachlng nails.

Many operators prefer to pull the jack forwardly and to place the toplift blank upon the shoe and then move the shoe and lift rearwardlyagain into attaching position. For carrying out this method of operationthe present mechanism may be used without change as the measuringoperation preparatory to spanking the top lift will be effectedprecisely as it was effected preparatory to driving the attaching nails.Some operators, however, prefer to place the top lift without moving thejack and in such cases the measuring operation may be initiated bymerely striking the tripping lever 80 to swing it rearwardly after thetop lift has been placed in position.

It will be apparent that awls could be substituted for the driversherein shown and that the invention could be embodied in a machine forpricking heels with scarcely any other change or that the provision of aturret carrying awls and also drivers would in no way affect theoperation of the measuring mechanism herein disclosed and it should beunderstood that the application of automatic measuring mechanism to suchmachines is clearly within the scope of the present invention.

Many features of the machine herein disclosed are broadly claimed in myco-pending application Serial No. 860,046 which constitutes acontinuation in part of the present application and generic to thedisclosures of both applications.

Having described my invention, claim as new and desire to secure by cersPatent of the United States is:

1. A machine for operating on heels having, in combination, power driventools, a pair of cooperating pressing members movable relatively to eachother in a horizontal direction and also movable toward each other in avertical path, and means including spring actuated mechanism for causingthe latter movement to take place automatically when the two members arebrought into vertical alinement before the power actuation of themachine.

2. A machine for operating on heels having, in combination, power driventools, a pair of cooperating pressing members one of which is arrangedabove the other, said members being relatively movable into or out ofvertical alinement with each other, and means including spring actuatedmechanism for automatically moving one of said members toward the otherwhen brought into vertical alinement therewith before the poweractuation of the machine.

3. A machine for operating on heels having, in combination, power driventools, cooperating pressing members, one of which is normally stationaryand the other of which is movable in a horizontal path into verticalalinement therewith, and means acting independently of the tools forautomatically bringing about the movement of said horizontally m va le mm er in a vertical path what I Letcontains claims when it is moved intovertical alinement with said normally stationary member.

4. A machine for operating on heels having, in combination, nailingmechanism, 00* operating work pressing members one of which is locatednormally in alinement with said mechanism and the other of which ismovable horizontally into or out of aline ment with said mechanism, andmeans re sponsive to the horizontal movement of said member for causingsaid member automatically to approach the cooperating work pressingmember by a substantially vertical movement when moved into verticalalinement with the nailing mechanism, said means operating independentlyof the nailing mechanism.

5. A machine for operating on heels having, in combination, nailingmechanism, cooperating work pressing members one of which is normallyarranged in alinement with said nailing mechanism and the other of whichis movable horizontally preparatory to the nailing operation intoalinement with the nailing mechanism, and mechanically actuatedmeasuring mechanism responsive to the movement of the latter member intoalinement with the nailing mechanism for causing said movable member tomove vertically toward the other work pressing members.

6. A machine for operating on heels having, in combination, a fixed dieplate, a jack movable horizontally into vertical alinement with andbeneath said plate, and mechanically actuated mechanism for elevatingthe jack controlled by the horizontal movement of the jack and arrangedto operate preliminarily to the power actuation of the niachine.

7. A machine for operating on heels having, in combination, side rods,an associated gang of tools, relatively movable work holding members,and automatic measuring mechanism including a spring actuated sleeveloosely mounted on one of the side rods and connecting mechanism betweenthe sleeve and one of the work holding members.

8. A machine for operating on heels having, in combination, a die plate,a jack carriage movable toward and from the die plate, a jack mountedfor transverse movement in the carriage into alinement with the dieplate, and means responsive to such transverse movement of the jack formoving the carriage and jack bodily toward the die plate.

9. A machine for operating on heels having, in combination, a relativelymovable die plate and work support, an actuator arranged to be energizedin each cycle of the machine, and means responsive to the presentationof the work preliminarily to the succeeding cycle of the machine forrender i g the act at r effective to move the die ing, in combination, adie plate, a work support movable in two directions, an actuatorconnected with the work support and ar: ranged to be energized in eachcycle of the machine, and means controlled by the position of the worksupport for bringing about the action of the actuator to produce a move-Irient of the work support toward the die p ate.

12. A machine for operating on heels having, in combination, a dieplate, a jack carriage guided for movement toward and from the dieplate, a jack movable transversely upon the jack carriage, and anactuator arranged to be energized in each cycle of the machine andhaving connections with the jack carriage, said actuator beingresponsive to the transverse movement of the jack in the carriage forbodily moving the carriage and jack toward the die plate.

13. A machine for operating on heels having, in combination, astationary work engaging member, a movable cooperating work engagingmember, and means for guiding said movable member in a horizontal pathtoward and from a position in vertical alinement with the stationarymember, said movable member being arranged to approach the stationarymember automatically when moved into vertical alinement therewith andpreliminarily to starting the machine.

14. A machine for operating on heels having, in combination, a normallystationary work engaging member, a carriage having horizontal waystherein, and a cooperating work engaging member mounted on said ways andmovable toward and from a position in vertical alinement with thestationary member, said carriage and movable member being arranged tomove bodily and automatically toward the stationary member when themovable member is brought into vertical alinement with the stationarymember;

15. A machine of the class described having, in combination, a gang oftools, power actuating means for the tools, heel measuring mechanism, asource of motive power for actuating said measuring mechanism to effectcompletely the measuring operation while the power actuating meansremains at rest, separate controlling devices for rendermg efl'ectivefirst the source of motive power for the measuring mechanism and thenthe power actuating means for the tools, and means for automaticallyapplying pressure to the work when the power actuating means For thetools is set in operation.

16. A 1nachine of the class described having, in combination, a dieplate having means for sustaining a heel blank upon its lower surface,and a jack arranged below the die plate, said die plate and jack beingrelatively movable manually into and out of vertical alinement and,before starting the machine, being relatively movable vertically andautomatically when the jack and heel blank are brought into verticalalinement.

17. A machine of the class described having, in combination, a die platehaving a heel blank holder, a jack for a shoe, the plate and jack beingarranged to be relatively moved manually into and out of verticalalinement, and means for automatically causing the lower of said membersto be lifted to produce a relative vertical movement of the shoe andheel when they are brought manually into alinement preliminarily tostarting the machine.

18. A machine of the class described having, in combination, relativelymovable work engaging members including a jack, automatic measuringmechanism responsive to the movement of the jack, and a controllingdmiice for the measuring mechanism on the ae 19. A machine of the classdescribed having, in combination, relatively movable work engagingmembers including a jack, auto matic measuring mechanism responsive tothe movement of the jack, and a controlling device for the measuringmechanism arranged to act when the jack is moved by the operator.

20. A machine of the class described having, in combination, relativelymovable Work engaging members including a jack, automatic measuringmechanism responsive to the movement of the Jack, a tripping device forthe measuring mechanism, and a trip controlling device on the jack.

21. A machine of the class described having, in combination, oppositelydisposed work engaging members one of which 'is movable into or out ofvertical alinement with the other, automatic measuring mechanismresponsive to the movement of the latter member, and a controllingdevice for the measuring mechanism associated with said member.

22. A machine of the class described having, in combination, relativelymovable work engaging members including a jack, automatic measuringmechanism, and means adjacent to the jack arranged to be operatedindependently of the jack to initiate the action of the measuringmechanism.

23. A machine of the class described havmemes ing, in combination,relatively movable Work engaging members including a jack, automaticmeasuring mechanism, and means adjacent t the jack arranged to beoperated either dependently or independently of the jack to initiate theaction of the measuring mechanism.

24. A machine of the class described having, in combination, relativelymovable work engaging members including a jack, and automatic measuringmechanism responsive to the movement of the ack or not responsive tosuch movement according to the option of the operator. 7

25. A machine of the class described having, in combination, relativelymovable work engaging members including a jack, automatic measuringmechanism, a tripping device mounted on the jack for initiating theaction of the measuring mechanism, and a trip controlling device on theack.

26. A machine of the class described having, in combination, relativelymovable work engaging members including a jack, automatic measuringmechanism, and'a tripping device for said mechanism adapted to beoperated only when the jack has been moved into a predeterminedposition.

27. A machine of the class described having, in combination, relativelymovable Work engaging members including a jack, automatie measuringmechanism, and a tripping device for said mechanism arranged to be movedinto or out of operative relation with the automatic measuring mechanismin accordance with the position of the jack.

28. A machine of the class described having, in combination, astationary die plate, a jack movable relatively thereto, a sleevenormally urged in one direction by a spring, means for moving the sleevein opposition to the spring and holding it in position, measuringmechanism connected to and actuated by the sleeve, and a tripping deviceadapted to release the sleeve and so initiate the action of themeasuring mechanism.

29. A machine of the class described having, in combination, a jack anddie plate relatively movable to measure the work, a spring arranged tobe placed under tension by the power of the machine, and mechanismconstructed and arranged to be operated when the jack is being movedinto operative position for releasing the tensioned spring, whereby themeasuring operation may be effected.

30. A machine for operating on heels having, in combination, powerdriven tools, a die plate, a jack movable horizontally beneath the dieplate from an outer to an inner position, automatic measuring mechanismfor moving the jack upwardly toward the die, starting mechanism, andmeans for locking the starting mechanism arranged to be unlocked inresponse to the inward movement of the jack.

31. A machine for operating on heels having, in combination, powerdriven tools, a jack movable to or from alinement with the tools,automatic mechanism for measuring the work upon the jack, :1 startingdevice, means for locking the starting device, and a train of mechanismbetween "the jack and the starting device arranged to be set in motionfor releasing the starting device by the inward movement of the jack.

32. A machine for operating on heels, comprising a heel holder, a jackfor a shoe on the last arranged for movement below a heel on the holderto bring the heel seat of the shoe into alinement with the heel, andmeans responsive to such movement of the jack and arranged for operatingautomatically when such relation is established for so moving the jackas to bring the heeland shoe into engagement.

A heel nailing machine having, in combination, a driver gang, a jackarranged to slide to or from a positionin alinement with the drivergang, automatic mechanism for moving the jack to measure the work, astarting device 6, a lock 47, and a lever 56 the motion of which isinitiated by the movement of the jack into alinement with the drivergang for unlocking the starting device.

In testimony whereof I have signed my name to this specifi ration in thepresence of two subscribing witnesses.

HERlilllftT W. KENWAY.

Witnesses:

ARTHUR Rnssunn, JENNIE l. 'A'NnansoN.

